diff options
Diffstat (limited to 'drivers/usb/host/sl811-hcd.c')
| -rw-r--r-- | drivers/usb/host/sl811-hcd.c | 400 |
1 files changed, 184 insertions, 216 deletions
diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c index 517360b77d8..a517151867a 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c @@ -22,7 +22,7 @@ * and usb-storage. * * TODO: - * - usb suspend/resume triggered by sl811 (with USB_SUSPEND) + * - usb suspend/resume triggered by sl811 (with PM_RUNTIME) * - various issues noted in the code * - performance work; use both register banks; ... * - use urb->iso_frame_desc[] with ISO transfers @@ -31,7 +31,6 @@ #undef VERBOSE #undef PACKET_TRACE -#include <linux/config.h> #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/kernel.h> @@ -39,44 +38,35 @@ #include <linux/ioport.h> #include <linux/sched.h> #include <linux/slab.h> -#include <linux/smp_lock.h> #include <linux/errno.h> -#include <linux/init.h> #include <linux/timer.h> #include <linux/list.h> #include <linux/interrupt.h> #include <linux/usb.h> -#include <linux/usb_sl811.h> +#include <linux/usb/sl811.h> +#include <linux/usb/hcd.h> #include <linux/platform_device.h> +#include <linux/prefetch.h> +#include <linux/debugfs.h> +#include <linux/seq_file.h> #include <asm/io.h> #include <asm/irq.h> -#include <asm/system.h> #include <asm/byteorder.h> +#include <asm/unaligned.h> -#include "../core/hcd.h" #include "sl811.h" MODULE_DESCRIPTION("SL811HS USB Host Controller Driver"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:sl811-hcd"); #define DRIVER_VERSION "19 May 2005" - -#ifndef DEBUG -# define STUB_DEBUG_FILE -#endif - /* for now, use only one transfer register bank */ #undef USE_B -/* this doesn't understand urb->iso_frame_desc[], but if you had a driver - * that just queued one ISO frame per URB then iso transfers "should" work - * using the normal urb status fields. - */ -#define DISABLE_ISO - // #define QUIRK2 #define QUIRK3 @@ -90,17 +80,15 @@ static void port_power(struct sl811 *sl811, int is_on) /* hub is inactive unless the port is powered */ if (is_on) { - if (sl811->port1 & (1 << USB_PORT_FEAT_POWER)) + if (sl811->port1 & USB_PORT_STAT_POWER) return; - sl811->port1 = (1 << USB_PORT_FEAT_POWER); + sl811->port1 = USB_PORT_STAT_POWER; sl811->irq_enable = SL11H_INTMASK_INSRMV; - hcd->self.controller->power.power_state = PMSG_ON; } else { sl811->port1 = 0; sl811->irq_enable = 0; hcd->state = HC_STATE_HALT; - hcd->self.controller->power.power_state = PMSG_SUSPEND; } sl811->ctrl1 = 0; sl811_write(sl811, SL11H_IRQ_ENABLE, 0); @@ -108,7 +96,8 @@ static void port_power(struct sl811 *sl811, int is_on) if (sl811->board && sl811->board->port_power) { /* switch VBUS, at 500mA unless hub power budget gets set */ - DBG("power %s\n", is_on ? "on" : "off"); + dev_dbg(hcd->self.controller, "power %s\n", + is_on ? "on" : "off"); sl811->board->port_power(hcd->self.controller, is_on); } @@ -164,7 +153,7 @@ static void setup_packet( writeb(SL_SETUP /* | ep->epnum */, data_reg); writeb(usb_pipedevice(urb->pipe), data_reg); - /* always OUT/data0 */ ; + /* always OUT/data0 */ sl811_write(sl811, bank + SL11H_HOSTCTLREG, control | SL11H_HCTLMASK_OUT); ep->length = 0; @@ -233,7 +222,7 @@ static void in_packet( writeb(usb_pipedevice(urb->pipe), data_reg); sl811_write(sl811, bank + SL11H_HOSTCTLREG, control); - ep->length = min((int)len, + ep->length = min_t(u32, len, urb->transfer_buffer_length - urb->actual_length); PACKET("IN%s/%d qh%p len%d\n", ep->nak_count ? "/retry" : "", !!usb_gettoggle(urb->dev, ep->epnum, 0), ep, len); @@ -258,7 +247,7 @@ static void out_packet( buf = urb->transfer_buffer + urb->actual_length; prefetch(buf); - len = min((int)ep->maxpacket, + len = min_t(u32, ep->maxpacket, urb->transfer_buffer_length - urb->actual_length); if (!(control & SL11H_HCTLMASK_ISOCH) @@ -290,7 +279,7 @@ static inline void sofirq_on(struct sl811 *sl811) { if (sl811->irq_enable & SL11H_INTMASK_SOFINTR) return; - VDBG("sof irq on\n"); + dev_dbg(sl811_to_hcd(sl811)->self.controller, "sof irq on\n"); sl811->irq_enable |= SL11H_INTMASK_SOFINTR; } @@ -298,7 +287,7 @@ static inline void sofirq_off(struct sl811 *sl811) { if (!(sl811->irq_enable & SL11H_INTMASK_SOFINTR)) return; - VDBG("sof irq off\n"); + dev_dbg(sl811_to_hcd(sl811)->self.controller, "sof irq off\n"); sl811->irq_enable &= ~SL11H_INTMASK_SOFINTR; } @@ -346,7 +335,8 @@ static struct sl811h_ep *start(struct sl811 *sl811, u8 bank) } if (unlikely(list_empty(&ep->hep->urb_list))) { - DBG("empty %p queue?\n", ep); + dev_dbg(sl811_to_hcd(sl811)->self.controller, + "empty %p queue?\n", ep); return NULL; } @@ -399,7 +389,8 @@ static struct sl811h_ep *start(struct sl811 *sl811, u8 bank) status_packet(sl811, ep, urb, bank, control); break; default: - DBG("bad ep%p pid %02x\n", ep, ep->nextpid); + dev_dbg(sl811_to_hcd(sl811)->self.controller, + "bad ep%p pid %02x\n", ep, ep->nextpid); ep = NULL; } return ep; @@ -409,7 +400,7 @@ static struct sl811h_ep *start(struct sl811 *sl811, u8 bank) static inline void start_transfer(struct sl811 *sl811) { - if (sl811->port1 & (1 << USB_PORT_FEAT_SUSPEND)) + if (sl811->port1 & USB_PORT_STAT_SUSPEND) return; if (sl811->active_a == NULL) { sl811->active_a = start(sl811, SL811_EP_A(SL811_HOST_BUF)); @@ -429,7 +420,6 @@ static void finish_request( struct sl811 *sl811, struct sl811h_ep *ep, struct urb *urb, - struct pt_regs *regs, int status ) __releases(sl811->lock) __acquires(sl811->lock) { @@ -438,14 +428,9 @@ static void finish_request( if (usb_pipecontrol(urb->pipe)) ep->nextpid = USB_PID_SETUP; - spin_lock(&urb->lock); - if (urb->status == -EINPROGRESS) - urb->status = status; - urb->hcpriv = NULL; - spin_unlock(&urb->lock); - + usb_hcd_unlink_urb_from_ep(sl811_to_hcd(sl811), urb); spin_unlock(&sl811->lock); - usb_hcd_giveback_urb(sl811_to_hcd(sl811), urb, regs); + usb_hcd_giveback_urb(sl811_to_hcd(sl811), urb, status); spin_lock(&sl811->lock); /* leave active endpoints in the schedule */ @@ -461,7 +446,8 @@ static void finish_request( } /* periodic deschedule */ - DBG("deschedule qh%d/%p branch %d\n", ep->period, ep, ep->branch); + dev_dbg(sl811_to_hcd(sl811)->self.controller, + "deschedule qh%d/%p branch %d\n", ep->period, ep, ep->branch); for (i = ep->branch; i < PERIODIC_SIZE; i += ep->period) { struct sl811h_ep *temp; struct sl811h_ep **prev = &sl811->periodic[i]; @@ -485,7 +471,7 @@ static void finish_request( } static void -done(struct sl811 *sl811, struct sl811h_ep *ep, u8 bank, struct pt_regs *regs) +done(struct sl811 *sl811, struct sl811h_ep *ep, u8 bank) { u8 status; struct urb *urb; @@ -541,35 +527,21 @@ done(struct sl811 *sl811, struct sl811h_ep *ep, u8 bank, struct pt_regs *regs) bank + SL11H_XFERCNTREG); if (len > ep->length) { len = ep->length; - urb->status = -EOVERFLOW; + urbstat = -EOVERFLOW; } urb->actual_length += len; sl811_read_buf(sl811, SL811HS_PACKET_BUF(bank == 0), buf, len); usb_dotoggle(udev, ep->epnum, 0); - if (urb->actual_length == urb->transfer_buffer_length) - urbstat = 0; - else if (len < ep->maxpacket) { - if (urb->transfer_flags & URB_SHORT_NOT_OK) - urbstat = -EREMOTEIO; + if (urbstat == -EINPROGRESS && + (len < ep->maxpacket || + urb->actual_length == + urb->transfer_buffer_length)) { + if (usb_pipecontrol(urb->pipe)) + ep->nextpid = USB_PID_ACK; else urbstat = 0; } - if (usb_pipecontrol(urb->pipe) - && (urbstat == -EREMOTEIO - || urbstat == 0)) { - - /* NOTE if the status stage STALLs (why?), - * this reports the wrong urb status. - */ - spin_lock(&urb->lock); - if (urb->status == -EINPROGRESS) - urb->status = urbstat; - spin_unlock(&urb->lock); - - urb = NULL; - ep->nextpid = USB_PID_ACK; - } break; case USB_PID_SETUP: // PACKET("...ACK/setup_%02x qh%p\n", bank, ep); @@ -598,7 +570,7 @@ done(struct sl811 *sl811, struct sl811h_ep *ep, u8 bank, struct pt_regs *regs) /* error? retry, until "3 strikes" */ } else if (++ep->error_count >= 3) { if (status & SL11H_STATMASK_TMOUT) - urbstat = -ETIMEDOUT; + urbstat = -ETIME; else if (status & SL11H_STATMASK_OVF) urbstat = -EOVERFLOW; else @@ -608,8 +580,8 @@ done(struct sl811 *sl811, struct sl811h_ep *ep, u8 bank, struct pt_regs *regs) bank, status, ep, urbstat); } - if (urb && (urbstat != -EINPROGRESS || urb->status != -EINPROGRESS)) - finish_request(sl811, ep, urb, regs, urbstat); + if (urbstat != -EINPROGRESS || urb->unlinked) + finish_request(sl811, ep, urb, urbstat); } static inline u8 checkdone(struct sl811 *sl811) @@ -621,7 +593,8 @@ static inline u8 checkdone(struct sl811 *sl811) ctl = sl811_read(sl811, SL811_EP_A(SL11H_HOSTCTLREG)); if (ctl & SL11H_HCTLMASK_ARM) sl811_write(sl811, SL811_EP_A(SL11H_HOSTCTLREG), 0); - DBG("%s DONE_A: ctrl %02x sts %02x\n", + dev_dbg(sl811_to_hcd(sl811)->self.controller, + "%s DONE_A: ctrl %02x sts %02x\n", (ctl & SL11H_HCTLMASK_ARM) ? "timeout" : "lost", ctl, sl811_read(sl811, SL811_EP_A(SL11H_PKTSTATREG))); @@ -632,7 +605,8 @@ static inline u8 checkdone(struct sl811 *sl811) ctl = sl811_read(sl811, SL811_EP_B(SL11H_HOSTCTLREG)); if (ctl & SL11H_HCTLMASK_ARM) sl811_write(sl811, SL811_EP_B(SL11H_HOSTCTLREG), 0); - DBG("%s DONE_B: ctrl %02x sts %02x\n", + dev_dbg(sl811_to_hcd(sl811)->self.controller, + "%s DONE_B: ctrl %02x sts %02x\n", (ctl & SL11H_HCTLMASK_ARM) ? "timeout" : "lost", ctl, sl811_read(sl811, SL811_EP_B(SL11H_PKTSTATREG))); @@ -642,7 +616,7 @@ static inline u8 checkdone(struct sl811 *sl811) return irqstat; } -static irqreturn_t sl811h_irq(struct usb_hcd *hcd, struct pt_regs *regs) +static irqreturn_t sl811h_irq(struct usb_hcd *hcd) { struct sl811 *sl811 = hcd_to_sl811(hcd); u8 irqstat; @@ -671,13 +645,13 @@ retry: * issued ... that's fine if they're different endpoints. */ if (irqstat & SL11H_INTMASK_DONE_A) { - done(sl811, sl811->active_a, SL811_EP_A(SL811_HOST_BUF), regs); + done(sl811, sl811->active_a, SL811_EP_A(SL811_HOST_BUF)); sl811->active_a = NULL; sl811->stat_a++; } #ifdef USE_B if (irqstat & SL11H_INTMASK_DONE_B) { - done(sl811, sl811->active_b, SL811_EP_B(SL811_HOST_BUF), regs); + done(sl811, sl811->active_b, SL811_EP_B(SL811_HOST_BUF)); sl811->active_b = NULL; sl811->stat_b++; } @@ -693,7 +667,7 @@ retry: * this one has nothing scheduled. */ if (sl811->next_periodic) { - // ERR("overrun to slot %d\n", index); + // dev_err(hcd->self.controller, "overrun to slot %d\n", index); sl811->stat_overrun++; } if (sl811->periodic[index]) @@ -724,7 +698,7 @@ retry: container_of(sl811->active_a ->hep->urb_list.next, struct urb, urb_list), - NULL, -ESHUTDOWN); + -ESHUTDOWN); sl811->active_a = NULL; } #ifdef USE_B @@ -742,20 +716,24 @@ retry: /* port status seems weird until after reset, so * force the reset and make khubd clean up later. */ - sl811->port1 |= (1 << USB_PORT_FEAT_C_CONNECTION) - | (1 << USB_PORT_FEAT_CONNECTION); + if (irqstat & SL11H_INTMASK_RD) + sl811->port1 &= ~USB_PORT_STAT_CONNECTION; + else + sl811->port1 |= USB_PORT_STAT_CONNECTION; + + sl811->port1 |= USB_PORT_STAT_C_CONNECTION << 16; } else if (irqstat & SL11H_INTMASK_RD) { - if (sl811->port1 & (1 << USB_PORT_FEAT_SUSPEND)) { - DBG("wakeup\n"); - sl811->port1 |= 1 << USB_PORT_FEAT_C_SUSPEND; + if (sl811->port1 & USB_PORT_STAT_SUSPEND) { + dev_dbg(hcd->self.controller, "wakeup\n"); + sl811->port1 |= USB_PORT_STAT_C_SUSPEND << 16; sl811->stat_wake++; } else irqstat &= ~SL11H_INTMASK_RD; } if (irqstat) { - if (sl811->port1 & (1 << USB_PORT_FEAT_ENABLE)) + if (sl811->port1 & USB_PORT_STAT_ENABLE) start_transfer(sl811); ret = IRQ_HANDLED; if (retries--) @@ -810,7 +788,6 @@ static int balance(struct sl811 *sl811, u16 period, u16 load) static int sl811h_urb_enqueue( struct usb_hcd *hcd, - struct usb_host_endpoint *hep, struct urb *urb, gfp_t mem_flags ) { @@ -823,25 +800,34 @@ static int sl811h_urb_enqueue( struct sl811h_ep *ep = NULL; unsigned long flags; int i; - int retval = 0; + int retval; + struct usb_host_endpoint *hep = urb->ep; -#ifdef DISABLE_ISO +#ifndef CONFIG_USB_SL811_HCD_ISO if (type == PIPE_ISOCHRONOUS) return -ENOSPC; #endif /* avoid all allocations within spinlocks */ - if (!hep->hcpriv) + if (!hep->hcpriv) { ep = kzalloc(sizeof *ep, mem_flags); + if (ep == NULL) + return -ENOMEM; + } spin_lock_irqsave(&sl811->lock, flags); /* don't submit to a dead or disabled port */ - if (!(sl811->port1 & (1 << USB_PORT_FEAT_ENABLE)) + if (!(sl811->port1 & USB_PORT_STAT_ENABLE) || !HC_IS_RUNNING(hcd->state)) { retval = -ENODEV; kfree(ep); - goto fail; + goto fail_not_linked; + } + retval = usb_hcd_link_urb_to_ep(hcd, urb); + if (retval) { + kfree(ep); + goto fail_not_linked; } if (hep->hcpriv) { @@ -853,7 +839,7 @@ static int sl811h_urb_enqueue( } else { INIT_LIST_HEAD(&ep->schedule); - ep->udev = usb_get_dev(udev); + ep->udev = udev; ep->epnum = epnum; ep->maxpacket = usb_maxpacket(udev, urb->pipe, is_out); ep->defctrl = SL11H_HCTLMASK_ARM | SL11H_HCTLMASK_ENABLE; @@ -868,9 +854,11 @@ static int sl811h_urb_enqueue( if (ep->maxpacket > H_MAXPACKET) { /* iso packets up to 240 bytes could work... */ - DBG("dev %d ep%d maxpacket %d\n", - udev->devnum, epnum, ep->maxpacket); + dev_dbg(hcd->self.controller, + "dev %d ep%d maxpacket %d\n", udev->devnum, + epnum, ep->maxpacket); retval = -EINVAL; + kfree(ep); goto fail; } @@ -932,7 +920,8 @@ static int sl811h_urb_enqueue( * to share the faster parts of the tree without needing * dummy/placeholder nodes */ - DBG("schedule qh%d/%p branch %d\n", ep->period, ep, ep->branch); + dev_dbg(hcd->self.controller, "schedule qh%d/%p branch %d\n", + ep->period, ep, ep->branch); for (i = ep->branch; i < PERIODIC_SIZE; i += ep->period) { struct sl811h_ep **prev = &sl811->periodic[i]; struct sl811h_ep *here = *prev; @@ -954,37 +943,31 @@ static int sl811h_urb_enqueue( sofirq_on(sl811); } - /* in case of unlink-during-submit */ - spin_lock(&urb->lock); - if (urb->status != -EINPROGRESS) { - spin_unlock(&urb->lock); - finish_request(sl811, ep, urb, NULL, 0); - retval = 0; - goto fail; - } urb->hcpriv = hep; - spin_unlock(&urb->lock); - start_transfer(sl811); sl811_write(sl811, SL11H_IRQ_ENABLE, sl811->irq_enable); fail: + if (retval) + usb_hcd_unlink_urb_from_ep(hcd, urb); +fail_not_linked: spin_unlock_irqrestore(&sl811->lock, flags); return retval; } -static int sl811h_urb_dequeue(struct usb_hcd *hcd, struct urb *urb) +static int sl811h_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) { struct sl811 *sl811 = hcd_to_sl811(hcd); struct usb_host_endpoint *hep; unsigned long flags; struct sl811h_ep *ep; - int retval = 0; + int retval; spin_lock_irqsave(&sl811->lock, flags); - hep = urb->hcpriv; - if (!hep) + retval = usb_hcd_check_unlink_urb(hcd, urb, status); + if (retval) goto fail; + hep = urb->hcpriv; ep = hep->hcpriv; if (ep) { /* finish right away if this urb can't be active ... @@ -997,7 +980,8 @@ static int sl811h_urb_dequeue(struct usb_hcd *hcd, struct urb *urb) } else if (sl811->active_a == ep) { if (time_before_eq(sl811->jiffies_a, jiffies)) { /* happens a lot with lowspeed?? */ - DBG("giveup on DONE_A: ctrl %02x sts %02x\n", + dev_dbg(hcd->self.controller, + "giveup on DONE_A: ctrl %02x sts %02x\n", sl811_read(sl811, SL811_EP_A(SL11H_HOSTCTLREG)), sl811_read(sl811, @@ -1011,7 +995,8 @@ static int sl811h_urb_dequeue(struct usb_hcd *hcd, struct urb *urb) } else if (sl811->active_b == ep) { if (time_before_eq(sl811->jiffies_a, jiffies)) { /* happens a lot with lowspeed?? */ - DBG("giveup on DONE_B: ctrl %02x sts %02x\n", + dev_dbg(hcd->self.controller, + "giveup on DONE_B: ctrl %02x sts %02x\n", sl811_read(sl811, SL811_EP_B(SL11H_HOSTCTLREG)), sl811_read(sl811, @@ -1027,13 +1012,14 @@ static int sl811h_urb_dequeue(struct usb_hcd *hcd, struct urb *urb) } if (urb) - finish_request(sl811, ep, urb, NULL, 0); + finish_request(sl811, ep, urb, 0); else - VDBG("dequeue, urb %p active %s; wait4irq\n", urb, + dev_dbg(sl811_to_hcd(sl811)->self.controller, + "dequeue, urb %p active %s; wait4irq\n", urb, (sl811->active_a == ep) ? "A" : "B"); } else -fail: retval = -EINVAL; + fail: spin_unlock_irqrestore(&sl811->lock, flags); return retval; } @@ -1050,9 +1036,8 @@ sl811h_endpoint_disable(struct usb_hcd *hcd, struct usb_host_endpoint *hep) if (!list_empty(&hep->urb_list)) msleep(3); if (!list_empty(&hep->urb_list)) - WARN("ep %p not empty?\n", ep); + dev_warn(hcd->self.controller, "ep %p not empty?\n", ep); - usb_put_dev(ep->udev); kfree(ep); hep->hcpriv = NULL; } @@ -1085,7 +1070,7 @@ sl811h_hub_status_data(struct usb_hcd *hcd, char *buf) */ local_irq_save(flags); if (!timer_pending(&sl811->timer)) { - if (sl811h_irq( /* ~0, */ hcd, NULL) != IRQ_NONE) + if (sl811h_irq( /* ~0, */ hcd) != IRQ_NONE) sl811->stat_lost++; } local_irq_restore(flags); @@ -1125,11 +1110,11 @@ sl811h_hub_descriptor ( /* no overcurrent errors detection/handling */ temp |= 0x0010; - desc->wHubCharacteristics = (__force __u16)cpu_to_le16(temp); + desc->wHubCharacteristics = cpu_to_le16(temp); - /* two bitmaps: ports removable, and legacy PortPwrCtrlMask */ - desc->bitmap[0] = 0 << 1; - desc->bitmap[1] = ~0; + /* ports removable, and legacy PortPwrCtrlMask */ + desc->u.hs.DeviceRemovable[0] = 0 << 1; + desc->u.hs.DeviceRemovable[1] = ~0; } static void @@ -1139,9 +1124,9 @@ sl811h_timer(unsigned long _sl811) unsigned long flags; u8 irqstat; u8 signaling = sl811->ctrl1 & SL11H_CTL1MASK_FORCE; - const u32 mask = (1 << USB_PORT_FEAT_CONNECTION) - | (1 << USB_PORT_FEAT_ENABLE) - | (1 << USB_PORT_FEAT_LOWSPEED); + const u32 mask = USB_PORT_STAT_CONNECTION + | USB_PORT_STAT_ENABLE + | USB_PORT_STAT_LOW_SPEED; spin_lock_irqsave(&sl811->lock, flags); @@ -1154,46 +1139,47 @@ sl811h_timer(unsigned long _sl811) switch (signaling) { case SL11H_CTL1MASK_SE0: - DBG("end reset\n"); - sl811->port1 = (1 << USB_PORT_FEAT_C_RESET) - | (1 << USB_PORT_FEAT_POWER); + dev_dbg(sl811_to_hcd(sl811)->self.controller, "end reset\n"); + sl811->port1 = (USB_PORT_STAT_C_RESET << 16) + | USB_PORT_STAT_POWER; sl811->ctrl1 = 0; /* don't wrongly ack RD */ if (irqstat & SL11H_INTMASK_INSRMV) irqstat &= ~SL11H_INTMASK_RD; break; case SL11H_CTL1MASK_K: - DBG("end resume\n"); - sl811->port1 &= ~(1 << USB_PORT_FEAT_SUSPEND); + dev_dbg(sl811_to_hcd(sl811)->self.controller, "end resume\n"); + sl811->port1 &= ~USB_PORT_STAT_SUSPEND; break; default: - DBG("odd timer signaling: %02x\n", signaling); + dev_dbg(sl811_to_hcd(sl811)->self.controller, + "odd timer signaling: %02x\n", signaling); break; } sl811_write(sl811, SL11H_IRQ_STATUS, irqstat); if (irqstat & SL11H_INTMASK_RD) { /* usbcore nukes all pending transactions on disconnect */ - if (sl811->port1 & (1 << USB_PORT_FEAT_CONNECTION)) - sl811->port1 |= (1 << USB_PORT_FEAT_C_CONNECTION) - | (1 << USB_PORT_FEAT_C_ENABLE); + if (sl811->port1 & USB_PORT_STAT_CONNECTION) + sl811->port1 |= (USB_PORT_STAT_C_CONNECTION << 16) + | (USB_PORT_STAT_C_ENABLE << 16); sl811->port1 &= ~mask; sl811->irq_enable = SL11H_INTMASK_INSRMV; } else { sl811->port1 |= mask; if (irqstat & SL11H_INTMASK_DP) - sl811->port1 &= ~(1 << USB_PORT_FEAT_LOWSPEED); + sl811->port1 &= ~USB_PORT_STAT_LOW_SPEED; sl811->irq_enable = SL11H_INTMASK_INSRMV | SL11H_INTMASK_RD; } - if (sl811->port1 & (1 << USB_PORT_FEAT_CONNECTION)) { + if (sl811->port1 & USB_PORT_STAT_CONNECTION) { u8 ctrl2 = SL811HS_CTL2_INIT; sl811->irq_enable |= SL11H_INTMASK_DONE_A; #ifdef USE_B sl811->irq_enable |= SL11H_INTMASK_DONE_B; #endif - if (sl811->port1 & (1 << USB_PORT_FEAT_LOWSPEED)) { + if (sl811->port1 & USB_PORT_STAT_LOW_SPEED) { sl811->ctrl1 |= SL11H_CTL1MASK_LSPD; ctrl2 |= SL811HS_CTL2MASK_DSWAP; } @@ -1253,7 +1239,7 @@ sl811h_hub_control( switch (wValue) { case USB_PORT_FEAT_ENABLE: - sl811->port1 &= (1 << USB_PORT_FEAT_POWER); + sl811->port1 &= USB_PORT_STAT_POWER; sl811->ctrl1 = 0; sl811_write(sl811, SL11H_CTLREG1, sl811->ctrl1); sl811->irq_enable = SL11H_INTMASK_INSRMV; @@ -1261,11 +1247,11 @@ sl811h_hub_control( sl811->irq_enable); break; case USB_PORT_FEAT_SUSPEND: - if (!(sl811->port1 & (1 << USB_PORT_FEAT_SUSPEND))) + if (!(sl811->port1 & USB_PORT_STAT_SUSPEND)) break; /* 20 msec of resume/K signaling, other irqs blocked */ - DBG("start resume...\n"); + dev_dbg(hcd->self.controller, "start resume...\n"); sl811->irq_enable = 0; sl811_write(sl811, SL11H_IRQ_ENABLE, sl811->irq_enable); @@ -1293,29 +1279,30 @@ sl811h_hub_control( sl811h_hub_descriptor(sl811, (struct usb_hub_descriptor *) buf); break; case GetHubStatus: - *(__le32 *) buf = cpu_to_le32(0); + put_unaligned_le32(0, buf); break; case GetPortStatus: if (wIndex != 1) goto error; - *(__le32 *) buf = cpu_to_le32(sl811->port1); + put_unaligned_le32(sl811->port1, buf); #ifndef VERBOSE if (*(u16*)(buf+2)) /* only if wPortChange is interesting */ #endif - DBG("GetPortStatus %08x\n", sl811->port1); + dev_dbg(hcd->self.controller, "GetPortStatus %08x\n", + sl811->port1); break; case SetPortFeature: if (wIndex != 1 || wLength != 0) goto error; switch (wValue) { case USB_PORT_FEAT_SUSPEND: - if (sl811->port1 & (1 << USB_PORT_FEAT_RESET)) + if (sl811->port1 & USB_PORT_STAT_RESET) goto error; - if (!(sl811->port1 & (1 << USB_PORT_FEAT_ENABLE))) + if (!(sl811->port1 & USB_PORT_STAT_ENABLE)) goto error; - DBG("suspend...\n"); + dev_dbg(hcd->self.controller,"suspend...\n"); sl811->ctrl1 &= ~SL11H_CTL1MASK_SOF_ENA; sl811_write(sl811, SL11H_CTLREG1, sl811->ctrl1); break; @@ -1323,9 +1310,9 @@ sl811h_hub_control( port_power(sl811, 1); break; case USB_PORT_FEAT_RESET: - if (sl811->port1 & (1 << USB_PORT_FEAT_SUSPEND)) + if (sl811->port1 & USB_PORT_STAT_SUSPEND) goto error; - if (!(sl811->port1 & (1 << USB_PORT_FEAT_POWER))) + if (!(sl811->port1 & USB_PORT_STAT_POWER)) break; /* 50 msec of reset/SE0 signaling, irqs blocked */ @@ -1334,7 +1321,7 @@ sl811h_hub_control( sl811->irq_enable); sl811->ctrl1 = SL11H_CTL1MASK_SE0; sl811_write(sl811, SL11H_CTLREG1, sl811->ctrl1); - sl811->port1 |= (1 << USB_PORT_FEAT_RESET); + sl811->port1 |= USB_PORT_STAT_RESET; mod_timer(&sl811->timer, jiffies + msecs_to_jiffies(50)); break; @@ -1360,7 +1347,7 @@ static int sl811h_bus_suspend(struct usb_hcd *hcd) { // SOFs off - DBG("%s\n", __FUNCTION__); + dev_dbg(hcd->self.controller, "%s\n", __func__); return 0; } @@ -1368,7 +1355,7 @@ static int sl811h_bus_resume(struct usb_hcd *hcd) { // SOFs on - DBG("%s\n", __FUNCTION__); + dev_dbg(hcd->self.controller, "%s\n", __func__); return 0; } @@ -1382,16 +1369,6 @@ sl811h_bus_resume(struct usb_hcd *hcd) /*-------------------------------------------------------------------------*/ -#ifdef STUB_DEBUG_FILE - -static inline void create_debug_file(struct sl811 *sl811) { } -static inline void remove_debug_file(struct sl811 *sl811) { } - -#else - -#include <linux/proc_fs.h> -#include <linux/seq_file.h> - static void dump_irq(struct seq_file *s, char *label, u8 mask) { seq_printf(s, "%s %02x%s%s%s%s%s%s\n", label, mask, @@ -1403,7 +1380,7 @@ static void dump_irq(struct seq_file *s, char *label, u8 mask) (mask & SL11H_INTMASK_DP) ? " dp" : ""); } -static int proc_sl811h_show(struct seq_file *s, void *unused) +static int sl811h_show(struct seq_file *s, void *unused) { struct sl811 *sl811 = s->private; struct sl811h_ep *ep; @@ -1435,7 +1412,7 @@ static int proc_sl811h_show(struct seq_file *s, void *unused) case SL11H_CTL1MASK_SE0: s = " se0/reset"; break; case SL11H_CTL1MASK_K: s = " k/resume"; break; default: s = "j"; break; - }; s; }), + } s; }), (t & SL11H_CTL1MASK_LSPD) ? " lowspeed" : "", (t & SL11H_CTL1MASK_SUSPEND) ? " suspend" : ""); @@ -1468,7 +1445,7 @@ static int proc_sl811h_show(struct seq_file *s, void *unused) case USB_PID_SETUP: s = "setup"; break; case USB_PID_ACK: s = "status"; break; default: s = "?"; break; - }; s;}), + } s;}), ep->maxpacket, ep->nak_count, ep->error_count); list_for_each_entry (urb, &ep->hep->urb_list, urb_list) { @@ -1514,42 +1491,31 @@ static int proc_sl811h_show(struct seq_file *s, void *unused) return 0; } -static int proc_sl811h_open(struct inode *inode, struct file *file) +static int sl811h_open(struct inode *inode, struct file *file) { - return single_open(file, proc_sl811h_show, PDE(inode)->data); + return single_open(file, sl811h_show, inode->i_private); } -static struct file_operations proc_ops = { - .open = proc_sl811h_open, +static const struct file_operations debug_ops = { + .open = sl811h_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; /* expect just one sl811 per system */ -static const char proc_filename[] = "driver/sl811h"; - static void create_debug_file(struct sl811 *sl811) { - struct proc_dir_entry *pde; - - pde = create_proc_entry(proc_filename, 0, NULL); - if (pde == NULL) - return; - - pde->proc_fops = &proc_ops; - pde->data = sl811; - sl811->pde = pde; + sl811->debug_file = debugfs_create_file("sl811h", S_IRUGO, + usb_debug_root, sl811, + &debug_ops); } static void remove_debug_file(struct sl811 *sl811) { - if (sl811->pde) - remove_proc_entry(proc_filename, NULL); + debugfs_remove(sl811->debug_file); } -#endif - /*-------------------------------------------------------------------------*/ static void @@ -1580,7 +1546,7 @@ sl811h_start(struct usb_hcd *hcd) hcd->power_budget = sl811->board->power * 2; } - /* enable power and interupts */ + /* enable power and interrupts */ port_power(sl811, 1); return 0; @@ -1625,7 +1591,7 @@ static struct hc_driver sl811h_hc_driver = { /*-------------------------------------------------------------------------*/ -static int __devexit +static int sl811h_remove(struct platform_device *dev) { struct usb_hcd *hcd = platform_get_drvdata(dev); @@ -1648,30 +1614,37 @@ sl811h_remove(struct platform_device *dev) return 0; } -static int __devinit +static int sl811h_probe(struct platform_device *dev) { struct usb_hcd *hcd; struct sl811 *sl811; - struct resource *addr, *data; + struct resource *addr, *data, *ires; int irq; void __iomem *addr_reg; void __iomem *data_reg; int retval; u8 tmp, ioaddr = 0; + unsigned long irqflags; + + if (usb_disabled()) + return -ENODEV; /* basic sanity checks first. board-specific init logic should * have initialized these three resources and probably board * specific platform_data. we don't probe for IRQs, and do only * minimal sanity checking. */ - irq = platform_get_irq(dev, 0); - if (dev->num_resources < 3 || irq < 0) + ires = platform_get_resource(dev, IORESOURCE_IRQ, 0); + if (dev->num_resources < 3 || !ires) return -ENODEV; + irq = ires->start; + irqflags = ires->flags & IRQF_TRIGGER_MASK; + /* refuse to confuse usbcore */ if (dev->dev.dma_mask) { - DBG("no we won't dma\n"); + dev_dbg(&dev->dev, "no we won't dma\n"); return -EINVAL; } @@ -1685,9 +1658,13 @@ sl811h_probe(struct platform_device *dev) if (!addr || !data) return -ENODEV; ioaddr = 1; - - addr_reg = (void __iomem *) addr->start; - data_reg = (void __iomem *) data->start; + /* + * NOTE: 64-bit resource->start is getting truncated + * to avoid compiler warning, assuming that ->start + * is always 32-bit for this case + */ + addr_reg = (void __iomem *) (unsigned long) addr->start; + data_reg = (void __iomem *) (unsigned long) data->start; } else { addr_reg = ioremap(addr->start, 1); if (addr_reg == NULL) { @@ -1703,7 +1680,7 @@ sl811h_probe(struct platform_device *dev) } /* allocate and initialize hcd */ - hcd = usb_create_hcd(&sl811h_hc_driver, &dev->dev, dev->dev.bus_id); + hcd = usb_create_hcd(&sl811h_hc_driver, &dev->dev, dev_name(&dev->dev)); if (!hcd) { retval = -ENOMEM; goto err5; @@ -1713,7 +1690,7 @@ sl811h_probe(struct platform_device *dev) spin_lock_init(&sl811->lock); INIT_LIST_HEAD(&sl811->async); - sl811->board = dev->dev.platform_data; + sl811->board = dev_get_platdata(&dev->dev); init_timer(&sl811->timer); sl811->timer.function = sl811h_timer; sl811->timer.data = (unsigned long) sl811; @@ -1735,7 +1712,7 @@ sl811h_probe(struct platform_device *dev) break; default: /* reject case 0, SL11S is less functional */ - DBG("chiprev %02x\n", tmp); + dev_dbg(&dev->dev, "chiprev %02x\n", tmp); retval = -ENXIO; goto err6; } @@ -1746,11 +1723,16 @@ sl811h_probe(struct platform_device *dev) * triggers (e.g. most ARM CPUs). Initial driver stress testing * was on a system with single edge triggering, so most sorts of * triggering arrangement should work. + * + * Use resource IRQ flags if set by platform device setup. */ - retval = usb_add_hcd(hcd, irq, SA_INTERRUPT | SA_SHIRQ); + irqflags |= IRQF_SHARED; + retval = usb_add_hcd(hcd, irq, irqflags); if (retval != 0) goto err6; + device_wakeup_enable(hcd->self.controller); + create_debug_file(sl811); return retval; @@ -1763,7 +1745,7 @@ sl811h_probe(struct platform_device *dev) if (!ioaddr) iounmap(addr_reg); err2: - DBG("init error, %d\n", retval); + dev_dbg(&dev->dev, "init error, %d\n", retval); return retval; } @@ -1771,7 +1753,7 @@ sl811h_probe(struct platform_device *dev) /* for this device there's no useful distinction between the controller * and its root hub, except that the root hub only gets direct PM calls - * when CONFIG_USB_SUSPEND is enabled. + * when CONFIG_PM_RUNTIME is enabled. */ static int @@ -1781,12 +1763,16 @@ sl811h_suspend(struct platform_device *dev, pm_message_t state) struct sl811 *sl811 = hcd_to_sl811(hcd); int retval = 0; - if (state.event == PM_EVENT_FREEZE) + switch (state.event) { + case PM_EVENT_FREEZE: retval = sl811h_bus_suspend(hcd); - else if (state.event == PM_EVENT_SUSPEND) + break; + case PM_EVENT_SUSPEND: + case PM_EVENT_HIBERNATE: + case PM_EVENT_PRETHAW: /* explicitly discard hw state */ port_power(sl811, 0); - if (retval == 0) - dev->dev.power.power_state = state; + break; + } return retval; } @@ -1799,15 +1785,13 @@ sl811h_resume(struct platform_device *dev) /* with no "check to see if VBUS is still powered" board hook, * let's assume it'd only be powered to enable remote wakeup. */ - if (dev->dev.power.power_state.event == PM_EVENT_SUSPEND - || !device_can_wakeup(&hcd->self.root_hub->dev)) { + if (!sl811->port1 || !device_can_wakeup(&hcd->self.root_hub->dev)) { sl811->port1 = 0; port_power(sl811, 1); usb_root_hub_lost_power(hcd->self.root_hub); return 0; } - dev->dev.power.power_state = PMSG_ON; return sl811h_bus_resume(hcd); } @@ -1822,7 +1806,7 @@ sl811h_resume(struct platform_device *dev) /* this driver is exported so sl811_cs can depend on it */ struct platform_driver sl811h_driver = { .probe = sl811h_probe, - .remove = __devexit_p(sl811h_remove), + .remove = sl811h_remove, .suspend = sl811h_suspend, .resume = sl811h_resume, @@ -1833,20 +1817,4 @@ struct platform_driver sl811h_driver = { }; EXPORT_SYMBOL(sl811h_driver); -/*-------------------------------------------------------------------------*/ - -static int __init sl811h_init(void) -{ - if (usb_disabled()) - return -ENODEV; - - INFO("driver %s, %s\n", hcd_name, DRIVER_VERSION); - return platform_driver_register(&sl811h_driver); -} -module_init(sl811h_init); - -static void __exit sl811h_cleanup(void) -{ - platform_driver_unregister(&sl811h_driver); -} -module_exit(sl811h_cleanup); +module_platform_driver(sl811h_driver); |